Fobd lock woeks



{No Model.)

W. REGAN. ATTAGHING KNOBS TO SPINDLES.

Patbnted Sept. 1, 1885.

QW/vtha AA e/s UNITED STATES PATENT @FFICE.

\VILLTAM REGAN, OF BRANFORD, CONNECTICUT, ASSIGNOR TO THE BRAN- FORD LOCK YVORKS, OF SAME PLACE.

ATTACHING KNOBS TO SPINDLES.

SPECIFICATION forming part of Letters Patent No. 325,445, dated September 1, 1885.

(No model.)

To all whom it may concern:

Be it known that 1, WILLIAM REGAN, of Branford,in the county ofNewHaven and State of Connecticut, have invented a new Improvement in Attaching Knobs to Spindles; and I do hereby declare the following, when taken in connection with accompanying drawings,

and the letters of reference marked lhereon to be a full, clear, and exact description of the IO same, and which said drawings constitute part of this specification, and represent-,in--

Figure 1, a side View of the knob, showing a longitudinal section of the neck,the rose, and the nut; Fig. 2, a perspective view of the nut,showiug the flange; Fig. 3, a perspective View of the neck, showing the shoulder; Fig. 4.,a rear View of the rose; Fig. 5,a1nodificatiou, showing the nut as secured to the door independent of the rose.

This invention relates to a device for ad justing door-knobs upon their spindles, so as to adapt them to doors of differing thickness, and is an improvement on the invention for which Letters Patent were granted to me March 27, 1877, No. 188,946, and which consisted in constructing the neck of the knob with an annular groove near its inner end, and combining therewith a nut with lugs to enter the said groove, and threaded axially with the c opening of the neck of the knob, to correspond to the thread on the angles of the knob-spindle, the said nut holding the knob at any point on the spindle to which the said nut may be turned, and with the rose constructed to 3 5 prevent the nut turning with the spindle.

In that invention it is necessary to attach the knob with the rose to the nut before engaging the nut with the spindle, thus necessi tating the drawing of the knob and rose for a 0 considerable distance upon the spindle by means of the nut-quite a difficult operation.

My object is to avoid this difficulty; and it consists in constructing the inner end of the neck of the knob with a shoulder extending 5 partially around it, and the nut adapted to screw upon the spindle, with a concentric grooved flange partially around the outer face and adapted to engage the shoulder on the knob, as more fully hereinafter described.

A is the spindle, of usual form, screwthreaded upon its angles. B is the knob, constructed with a neck, C, the said neck con structed with an angular longitudinal hole corresponding to the shape of the spindle, and with a shoulder, a, at its inner end, extending preferably about half around the neck, as shown in Fig. 3.

D is the nut, internally screw-threaded to correspond with the thread upon the angle of the spindle, and constructed with a concentric grooved flange, Z), preferably semicircular, as shown in Fig. 2, and adapted to engage the shoulder a on the neck of the knob,for the purpose of holding it in any desired position. d is an ear upon the edge of the nut.

E is the rose, constructed with notches c e, to engage the ear d, to hold the nut in position.

To secure the knob to the spindle, screw the not upon the spindle until it is nearly to a bearing against the door, place theknob and rose upon the spindle against the nut, and so that the shoulder on the neck will pass the flange on the nut, and then turn the nut to a bearing, which will cause the flange b to pass over the shoulder a. The nut is secured by engaging the ear (Z with one of the notches 60, then securing the rose to the door in the usual manner. The not may be secured directly to the door by a screw through the edge of the nut, as seen in Fig In this case I have shown the shoulder a and the flange b to extend one-half of the circumference of the neck and nut; but they may be of any desired length, it only being essential that the not should be adapted to engage the neck after the nut is 85 screwed upon the spindle.

I claixnl. The combination of the angular spindle A, screw-threaded upon its angles, the knob B,with its neck C constructed with an angular longitudinal hole corresponding to the spindle, and with a shoulder, a, extending partially around the inner end, and a nut, D, internally screw-threaded to correspond to the thread upon the angles of the spindle, and 93 constructed with a concentric grooved flange,

b, to engage the shoulder a on the neck, and adapted to be secured to the door, substantially as described.

2, The combination of the angular spindle I00 B,with its neck Oconstructed with an angular longitudinal hole corresponding to the spindle, and with a shoulder, 0, extending par- 5 tially around its inner end, a nut, D, inter- A, screw-threaded upon its angles, the knob,

nally screw threaded to correspond to the thread upon the angles of the spindle, and constructed with a concentric grooved flange, b, 

